Results 31 to 40 of about 74,912 (281)

Influence of Intermediate Principal Stress on Plastic Flow

Transactions of the Japan Society of Mechanical Engineers, 1959
Let σ1, σ2 and σ3 (σ1>σ2>σ3) be the principal stresses, and σ3=0. Taking σ1 and σ2 as the axes, the criterion of plastic flow is not expressed by a smooth curve by the authors' theory, but a curve composed of two straight lines which intersect at σ1=4σ2 in the range between tension and pure shear. Experiments were carried out.
NAKANISHI, Fujio, SATO, Yasuo
openaire   +3 more sources

Particle Flow Simulation of Failure Process of Defective Sandstone under Different Intermediate Principal Stress under True Triaxial Action

, 2022
In order to explore the mechanical response characteristics of fractured sandstone under true triaxial different medium principal stresses, matdem particle flow software was used to study the mechanical response characteristics, fracture mechanism and ...
Ziyi Wang, Heng Ding, Chang Luo, Hengyu Su, Shu Ma   +4 more
core   +1 more source

The effect of the intermediate principal stress for dimensioning in room and pillar mining:

The room and pillar mining method is widely used mining technology to ensure stability and low environmental impact. Existing pillar and drift design methods are based on classical failure criteria, which do not consider the intermediate principal stress component.
Maina, Duncan
core   +3 more sources

Study of intermediate principal stress effect on progressive damage and permeability characteristics of unloading sandstone

Meikuang Anquan
In order to investigate the effect of intermediate principal stress on the progressive damage and permeability characteristics of unloading sandstone, the unloading test was carried out under different intermediate principal stress conditions based on a ...
Jiahui DU, Wenpu LI, Yue CHANG, Ze WANG, Tao WANG   +4 more
doaj   +1 more source

Experimental study on failure evolution mechanism of clastic rock considering cementation and intermediate principal stress

, 2023
The study of clastic rock failure evolution under true triaxial stress is an important research topic; however, it is rarely studied systematically due to the limitation of monitoring technology.
Yangyi Zhou, Xia-Ting Feng, Xiaojun Yu, Feiyan Wang   +3 more
core   +1 more source

Mechanical properties and constitutive model of artificial frozen sandy soils under true triaxial stress state conditions

Case Studies in Thermal Engineering
Triaxial compression tests were conducted on frozen sandy soils under a constant minimum principal stress (σ3 = 1.6 MPa) and various intermediate principal stresses (σ2 = 1.6, 3.4, 5.2, 7.0, 8.8, 9.8 MPa).
Kun Huang, Haoran Tang, Dongdong Ma, Hongpeng Zhang, Zhaolin Li, Kai Huang, Jian Lin   +6 more
doaj   +1 more source

A Simple Solution and Dilatancy Characterization for a Circular Tunnel Excavated in the Nonlinear Strain-Softening and Nonlinear Dilatancy Rock Mass

Advances in Civil Engineering, 2023
Tunnel opening or excavation in the strain-softening rock masses primarily leads to initial stress release and rock deformation. The increasing plastic shear strain induces a nonlinear variation of dilatancy in rock masses. Therefore, tunnel stability is
Xiuling Wang
doaj   +1 more source

Seepage Flow Properties of a Columnar Jointed Rock Mass in a True Triaxial Experiment

Geofluids, 2021
A columnar jointed rock mass is a type of rock mass with strong geometric anisotropy and high interface permeability. Its seepage characteristics pose new challenges to the construction and maintenance of the Baihetan Hydropower Station on the Jinsha ...
Yanxin He, Zhende Zhu, Wenbin Lu, Yunjin Hu, Xinghua Xie, Sijing Wang   +5 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source